Malicious PDF — malware analysis report

Static analysis result for SHA-256 40c6ed637759e4e8…

MALICIOUS

PDF

66.6 KB Created: 2021-02-13 03:14:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3b3e79dc8101b09a28d85c034c9953c5 SHA-1: 00a06830e9903b74951919d8e376cdc715139ec9 SHA-256: 40c6ed637759e4e8ff97b8b59d15b84a18717addd4f2f62c7d276a1b40c4ec69
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://leonvi.ru/wix?keyword=neon+manual+transmission+shifter PDF link annotation
    • https://cdn.sqhk.co/kekumumaxow/jiwjage/jelibijiwarabano.pdfIn PDF document text
    • http://gtomishebs.xyz/913591682853q8qh.pdfIn PDF document text
    • http://bluetea.space/4136569677013zhb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487897/normal_5fefecb1803f3.pdfIn PDF document text
    • https://cdn.sqhk.co/kizusuvut/4OhfKaZ/4964280533.pdfIn PDF document text
    • http://rm-swis-mine.com/75669244983uc3v1.pdfIn PDF document text
    • https://cdn.sqhk.co/woleparos/dOFDcii/munusavomuzulewobazupu.pdfIn PDF document text
    • http://italywom.space/timestamp_in_oracle_date_formatzqujv.pdfIn PDF document text
    • http://yourbigdick.space/amantele_trecutuluiw7li2.pdfIn PDF document text
    • https://cdn.sqhk.co/dakagugi/djgkfs6/retevivebagifi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392659/normal_60084c8deb5c1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vuxirefare/7121637480.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/35357168243.pdfIn PDF document text
    • http://loluwoje.epizy.com/8424892929.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/fexosiv.pdfIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/crossword_answer_for_detached_or_aloof.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c93d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC93D 4976 bytes
SHA-256: 311c0b7f13377daa07e33d48ed48161e7870f74ddebf4d0dd45539c24da81e41
font_01_sfnt_off0000d9fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9FA 10440 bytes
SHA-256: b156574a3b5bb28e58a5956a67c56b1f173776db18b042d4c245b2b7c9417153